Pathogenesis

Probably is delayed hypersensitivity reaction to a variety of antigens; most common associations with streptococcal infections in children and sarcoidosis in adults; other associations include tuberculosis, myco-plasma pneumonia, leprosy, coccidioid-omycosis, North American blastomycosis, histoplasmosis, inflammatory bowel disease, pregnancy, and Behcet's disease; associated medications include oral contraceptives and sulfonamides

Clinical manifestation

Prodrome of flulike symptoms of fever and generalized aching; lesions begin as poorly-defined, red, tender nodules; become firm and painful during the second week; sometimes becoming fluctuant; not suppurating or ulcerating; individual lesions last approximately 2 weeks; associated leg edema and pain

Rosacea and Eczema are two skin conditions that are fairly commonly found throughout the world. Each of them is characterized by different features, and can be both discomfiting as well as result in undesirable appearance features. In a nutshell, theyre problems that many would want to deal with.